Dry-method blanking device of laser particle analyzer

Abstract

The utility model discloses a dry-method blanking device of a laser particle size analyzer, relates to the technical field of the dry-method blanking device of the laser particle size analyzer, and can improve the use convenience of the blanking device. The dry-method blanking device of the laser particle size analyzer comprises a hopper mounting seat, a hopper and a material screening device, and the hopper mounting seat is connected with the vibrator. And the hopper is detachably arranged in the hopper mounting seat. And the material screening device is arranged in the hopper. The material screening device is used for crushing and screening materials. The hopper can be quickly disassembled, disassembly, replacement, cleaning and maintenance are convenient, use is convenient and fast, the material screening device can crush and screen materials, sticky or easily-clustered samples do not need to be manually intervened, and the use experience is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of dry feeding devices for laser particle size analyzers, and in particular to a dry feeding device for laser particle size analyzers. Background Technology

[0002] A laser particle size analyzer is an instrument used to measure particle size distribution. Its principle is that when a sample passes through a laser beam, scattering or diffraction produces a specific light energy distribution. An optical model converts this light energy distribution signal into an electrical signal, which is then calculated by software to determine the particle size and distribution. Due to its simple operation and stable measurement results, it is widely used in various industries such as chemical, pharmaceutical, food, and coatings. In these industries, most samples dissolve in water or react with water, requiring dry measurement methods. During dry measurement analysis, the sample is fed by a feeding device in the auxiliary system of the main unit to a dispersion device for dispersion. Only when the feeding device uniformly feeds the sample into the dispersion device can the dispersion device effectively disperse the sample.

[0003] The feeding device is usually installed on a linear vibrator. The linear vibrator drives the sample on the feeding device to move in a straight line. Traditional feeding devices require the sample to be evenly spread on the material spreading area of ​​the material tray, and then the baffle is adjusted so that the sample can pass smoothly through the adjusted gap during vibration. Finally, the locking nut is tightened.

[0004] Traditional feeding devices require the sample to be evenly spread on the tray. The uniformity of the spread affects the amount of material fed, thus affecting the dispersion effect. Furthermore, the size of the baffle gap affects the uniformity of the feed. It takes many trials to find the right size. At the same time, different spreading techniques and baffle gap sizes are required to measure different samples, resulting in low work efficiency. Finally, manual intervention is required to process sticky or easily clumped samples, which reduces the user experience. Utility Model Content

[0005] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide a dry feeding device for laser particle size analyzers, which can improve the ease of use of the feeding device.

[0006] This utility model provides a dry feeding device for a laser particle size analyzer, including a hopper mounting base connected to a vibrator; a hopper detachably mounted in the hopper mounting base; and a material screening device disposed in the hopper for crushing and screening materials.

[0007] A dry feeding device for a laser particle size analyzer according to an embodiment of the present invention has at least the following beneficial effects: The dry feeding device for a laser particle size analyzer includes a hopper mounting base, a hopper, and a material screening device. The hopper mounting base is connected to a vibrator. The hopper is detachably mounted in the hopper mounting base. The material screening device is disposed in the hopper. The material screening device is used for crushing and screening materials. The hopper can be quickly disassembled, facilitating disassembly, replacement, cleaning, and maintenance, making it convenient to use. The material screening device can crush and screen materials without manual intervention for sticky or easily agglomerated samples, improving the user experience.

[0008] According to the present invention, a dry feeding device for a laser particle size analyzer includes a screening cup, a screen, and several screening beads. The screening cup is disposed in the hopper and is frustoconical in shape. A screening chamber is provided inside the screening cup. The diameter of the lower end of the screening cup is smaller than the diameter of the upper end. Several screening holes are opened at the lower end of the screening chamber. Several screening beads are movably disposed in the screening chamber. The diameter of the screening beads is larger than the diameter of the screening holes. The screen is disposed at the upper end of the screening cup.

[0009] According to the dry feeding device for laser particle size analyzer described in this utility model, the hopper mounting base is provided with a hopper mounting groove, and the hopper is inserted into the hopper mounting groove.

[0010] According to the dry feeding device for laser particle size analyzer described in this utility model, guide posts are provided on both sides of the hopper mounting groove, and guide holes are provided on both sides of the hopper, and the guide posts can be inserted into the guide holes.

[0011] The dry feeding device for a laser particle size analyzer according to this utility model further includes a quick-release component, which is used to quickly lock and disassemble the hopper.

[0012] According to the dry feeding device for a laser particle size analyzer described in this utility model, the quick-release assembly includes a positioning platform, a mounting hole, a positioning post, a handle, and a locking rod. The positioning platform is located on the hopper mounting base and on one side of the hopper mounting slot. The mounting hole is located on the axis of the positioning platform. The handle is rotatably sleeved on the positioning post. The positioning post passes through the handle and is inserted into the mounting hole. The locking rod is horizontally positioned on the hopper. The lower edge of the handle has an inclined surface. The locking rod is close to the inclined surface. When the handle is rotated, and the unlocking notch is opposite to the locking rod, the vertical degree of freedom of the hopper is unlocked.

[0013] According to the dry feeding device for laser particle size analyzer described in this utility model, the quick-release assembly further includes a torsion spring and two sets of limiting posts. The torsion spring is sleeved on the positioning post and connected to the handle. After the handle is rotated to the unlock position, the torsion spring drives the handle to rotate back to the locked position. The two sets of limiting posts are set on the hopper mounting base and are used to limit the rotation angle of the handle.

[0014] According to the dry feeding device for a laser particle size analyzer described in this utility model, the screening beads are ceramic spheres.

[0015] According to the dry feeding device for a laser particle size analyzer described in this utility model, the particle sizes of the plurality of screen beads are different.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0018] Figure 1 This is a schematic diagram of the structure of a preferred embodiment of the present utility model;

[0019] Figure 2 This is a top view of a preferred embodiment of the present invention;

[0020] Figure 3 for Figure 2 Sectional view of section AA;

[0021] Figure 4 This is a cross-sectional view of the hopper in a preferred embodiment of the present invention;

[0022] Figure 5 for Figure 2 Sectional view of section BB;

[0023] Figure 6 for Figure 5 A magnified view of a section at point C;

[0024] Figure 7 This is a schematic diagram of the handle of a preferred embodiment of the present invention. Detailed Implementation

[0025] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0026] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0028] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0029] Reference Figures 1 to 7 A dry feeding device for a laser particle size analyzer includes a hopper mounting base 10, a hopper 20, and a material screening device 30. The hopper mounting base 10 is connected to a vibrator. The hopper 20 is detachably mounted in the hopper mounting base 10. The material screening device 30 is disposed in the hopper 20. The material screening device 30 is used for crushing and screening materials.

[0030] Understandably, the hopper 20 can be quickly disassembled, making it easy to disassemble, replace, clean, and maintain, and it is convenient to use. The material screening device 30 can crush and screen materials without manual intervention for sticky or easily clumped samples, thus improving the user experience.

[0031] Reference Figure 3 The material screening device 30 includes a screening cup 31, a screen 32, and a plurality of screening beads 33. The screening cup 31 is disposed in the hopper 20. The screening cup 31 is frustoconical in shape. A screening chamber 311 is provided inside the screening cup 31. The diameter of the lower end of the screening cup 31 is smaller than the diameter of the upper end. A plurality of screening holes 312 are opened at the lower end of the screening chamber 311. The plurality of screening beads 33 are movably disposed in the screening chamber 311. The diameter of the screening beads 33 is larger than the diameter of the screening holes 312. The screen 32 is disposed at the upper end of the screening cup 31.

[0032] Understandably, after the vibrator is turned on and the material is put into the hopper 20, the material will fall above the screen 32. At this time, the material first passes through the screen 32 for screening, then through the gaps of the screen beads 33, and finally through the screen holes 312 to complete the dispersion.

[0033] It is worth noting that when processing sticky or easily clumped samples, after the sample falls onto the sieve beads 33, the high-frequency vibrating sieve beads 33 will break the sample, and then the sample will fall through the gaps between the sieve beads 33, ensuring the uniformity of sample drop. Furthermore, no manual intervention is required, reducing labor costs.

[0034] Reference Figure 1 The hopper mounting base 10 is provided with a hopper mounting groove 11. The hopper 20 is inserted into the hopper mounting groove 11.

[0035] Reference Figure 4 The hopper mounting groove 11 is provided with guide posts 12 on both sides. The hopper 20 is provided with guide holes 21 on both sides, and the guide posts 12 can be inserted into the guide holes 21.

[0036] It is worth noting that the guide post 12 is inserted into the guide hole 21, which can restrict the hopper 20 from rotating in the hopper mounting groove 11.

[0037] Reference Figure 1 A dry feeding device for a laser particle size analyzer also includes a quick-release assembly 40. The quick-release assembly 40 is used for quickly locking and disassembling the hopper 20.

[0038] Reference Figure 6 The quick-release assembly 40 includes a positioning platform 41, a mounting hole 42, a positioning post 43, a handle 44, and a locking rod 45. The positioning platform 41 is located on the hopper mounting base 10 and on one side of the hopper mounting slot 11. The mounting hole 42 is located on the axis of the positioning platform 41. The handle 44 is rotatably fitted onto the positioning post 43. The positioning post 43 passes through the handle 44 and is inserted into the mounting hole 42. The locking rod 45 is horizontally positioned on the hopper 20. The lower edge of the handle 44 has an inclined surface 441. The locking rod 45 is in close contact with the inclined surface 441. When the inclined surface 441 is in close contact with the locking rod 45, the vertical freedom of the hopper 20 is restricted. The handle 44 has an unlocking notch 442. Rotating the handle 44, when the unlocking notch 442 is aligned with the locking rod 45, unlocks the vertical freedom of the hopper 20.

[0039] Understandably, in the embodiments of this utility model, in the locked state, the hopper 20 is inserted into the hopper mounting slot 11, and the guide post 12 is inserted into the guide hole 21, which allows the hopper 20 to have only a vertical degree of freedom. At this time, the locking rod 45 on one side of the hopper 20 contacts the inclined surface 441, and the vertical degree of freedom of the hopper 20 is restricted by the handle 44, so that the hopper 20 is completely fixed on the hopper mounting base 10. When unlocking is required, the handle 44 is rotated so that the unlocking notch 442 is opposite to the locking rod 45. Since there is no inclined surface 441 at the unlocking notch 442, the vertical degree of freedom of the hopper 20 is not restricted, and it can rise or fall freely. At this time, the operator can pull out the hopper 20 to perform replacement, cleaning, and other maintenance work.

[0040] Reference Figure 1 and Figure 6 The quick-release assembly 40 also includes a torsion spring 46 and two sets of limiting posts 47. The torsion spring 46 is sleeved on the positioning post 43 and connected to the handle 44. After the handle 44 is rotated to the unlocked position, the torsion spring 46 can drive the handle 44 to rotate back to the locked position. The two sets of limiting posts 47 are provided on the hopper mounting base 10, and the two sets of limiting posts 47 are used to limit the rotation angle of the handle 44.

[0041] Understandably, when the operator turns the handle 44 to the unlock position to unlock, the torsion spring 46 can drive the handle 44 to the locked position and keep it in the locked position. When it is not necessary to unload the hopper 20, the torsion spring 46 can keep the handle 44 in the locked position to prevent the hopper 20 from loosening due to vibration.

[0042] Understandably, the two sets of limit posts 47 can limit the maximum rotation position of the handle 44, preventing the handle 44 from rotating excessively under the drive of the torsion spring 46 and colliding with the hopper 20.

[0043] It is worth noting that in some embodiments of this utility model, the screening bead 33 is a ceramic sphere.

[0044] Understandably, ceramic balls have advantages such as high hardness and wear resistance, resulting in a long service life and reducing the frequency of equipment maintenance.

[0045] It is worth noting that in some embodiments of this utility model, the particle size of several sieve beads 33 is different.

[0046] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A laser particle sizer dry material discharge device, characterized in that, The utility model relates to a material screening device, including: Hopper mounting seat (10) is connected with vibrator; Hopper (20) is detachably arranged in the hopper mounting seat (10); Material screening device (30) is arranged in the hopper (20), and the material screening device (30) is used for crushing and screening material.

2. The laser particle sizer dry material discharging device according to claim 1, characterized in that, The material screening device (30) includes a screening cup (31), a screen (32), and a plurality of screening beads (33). The screening cup (31) is arranged in the hopper (20) and is in the shape of a circular truncated cone. The screening cup (31) has a screening cavity (311) inside. The lower end of the screening cup (31) has a smaller diameter than the upper end. The lower end of the screening cavity (311) has a plurality of screening holes (312). A plurality of screening beads (33) are movably arranged in the screening cavity (311). The diameter of the screening beads (33) is greater than the diameter of the screening holes (312). The screen (32) is arranged at the upper end of the screening cup (31).

3. The laser particle sizer dry material discharging device according to claim 1, characterized in that, The hopper mounting seat (10) is provided with a hopper mounting groove (11), and the hopper (20) is inserted into the hopper mounting groove (11).

4. The laser particle sizer dry material discharging device according to claim 3, characterized in that, The hopper mounting groove (11) is provided with guide columns (12) on both sides. The hopper (20) is provided with guide holes (21) on both sides. The guide columns (12) can be inserted into the guide holes (21).

5. The laser particle sizer dry material discharging device according to claim 3, characterized in that, The utility model also includes a quick release assembly (40) for quickly locking and disassembling the hopper (20).

6. The laser particle sizer dry material discharging device according to claim 5, characterized in that, The quick release assembly (40) includes a positioning table (41), a mounting hole (42), a positioning column (43), a handle (44), and a locking rod (45). The positioning table (41) is arranged on the hopper mounting seat (10) and located on one side of the hopper mounting groove (11). The mounting hole (42) is arranged on the axis of the positioning table (41). The handle (44) is rotatably sleeved on the positioning column (43). The positioning column (43) is inserted into the mounting hole (42) through the handle (44). The locking rod (45) is horizontally arranged on the hopper (20). The lower edge of the handle (44) is provided with an inclined surface (441). The locking rod (45) is in close contact with the inclined surface (441). When the inclined surface (441) is in close contact with the locking rod (45), the vertical degree of freedom of the hopper (20) is limited. The handle (44) is provided with an unlocking notch (442). When the unlocking notch (442) is opposite to the locking rod (45) by rotating the handle (44), the vertical degree of freedom of the hopper (20) is unlocked.

7. The laser particle sizer dry material discharging device according to claim 6, characterized in that, The quick release assembly (40) further comprises a torsion spring (46) and two sets of limiting posts (47), the torsion spring (46) is sleeved on the positioning post (43) and connected with the handle (44), the torsion spring (46) drives the handle (44) to rotate and reset to the locked position after the handle (44) is rotated to the unlocked position, and the two sets of limiting posts (47) are arranged on the hopper mounting seat (10) and used for limiting the rotation angle of the handle (44).

8. The laser particle sizer dry material discharging device according to claim 2, characterized in that, The screening beads (33) are spheres made of ceramic.

9. The laser particle sizer dry material discharging device according to claim 2, characterized in that, The particle sizes of the screening beads (33) are different.

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